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Home Return to list Small Craft Advisory 0148 Issued by the Duluth Forecast Office
Action: New Issued At: 2025-12-20 19:26:01 471 WHUS73 KDLH 210125 MWWDLH URGENT - MARINE WEATHER MESSAGE National Weather Service Duluth MN 725 PM CST Sat Dec 20 2025 LSZ145>148-150-211000- /O.CAN.KDLH.GL.W.0044.000000T0000Z-251221T0400Z/ /O.NEW.KDLH.SC.Y.0148.251221T0125Z-251221T1000Z/ /O.CON.KDLH.UP.W.0010.000000T0000Z-251221T1000Z/ Duluth MN to Port Wing WI-Port Wing to Sand Island WI- Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI- Outer Apostle Islands Beyond 5 NM from Mainland- 725 PM CST Sat Dec 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CST SUNDAY... ...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 4 AM CST SUNDAY... ...GALE WARNING IS CANCELLED... * WHAT...For the Small Craft Advisory, west winds 15 to 25 kt with gusts up to around 30 kt and waves 5 to 8 ft. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater may rapidly accumulate on vessels. * WHERE...Duluth MN to Port Wing WI, Port Wing to Sand Island WI, Sand Island to Bayfield WI, Oak Point to Saxon Harbor WI and Outer Apostle Islands Beyond 5 NM from Mainland. * WHEN...Until 4 AM CST Sunday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. Anyone operating a smaller vessel should avoid navigating in hazardous conditions. && $$ LSZ140-211000- /O.CAN.KDLH.UP.W.0010.000000T0000Z-251221T0400Z/ /O.CON.KDLH.GL.W.0044.000000T0000Z-251221T1000Z/ Grand Portage to Grand Marais MN- 725 PM CST Sat Dec 20 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM CST SUNDAY... ...HEAVY FREEZING SPRAY WARNING IS CANCELLED... * WHAT...Northwest winds 10 to 20 kt with gusts up to 40 kt and waves 1 to 4 ft. * WHERE...Grand Portage to Grand Marais MN. * WHEN...Until 4 AM CST Sunday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ141>144-211000- /O.CAN.KDLH.GL.W.0044.000000T0000Z-251221T0400Z/ /O.NEW.KDLH.SC.Y.0148.251221T0125Z-251221T1000Z/ Grand Marais to Taconite Harbor MN- Taconite Harbor to Silver Bay Harbor MN- Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN- 725 PM CST Sat Dec 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CST SUNDAY... ...GALE WARNING IS CANCELLED... * WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and waves 1 to 3 ft. * WHERE...Grand Marais to Taconite Harbor MN, Taconite Harbor to Silver Bay Harbor MN, Silver Bay Harbor to Two Harbors MN and Two Harbors to Duluth MN. * WHEN...Until 4 AM CST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Anyone operating a smaller vessel should avoid navigating in hazardous conditions. && $$ LSZ121-211000- /O.CAN.KDLH.GL.W.0044.000000T0000Z-251221T0400Z/ /O.NEW.KDLH.SC.Y.0148.251221T0125Z-251221T1000Z/ Chequamegon Bay-Bayfield to Oak Point WI- 725 PM CST Sat Dec 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CST SUNDAY... ...GALE WARNING IS CANCELLED... * WHAT...West winds 10 to 20 kt with gusts up to 30 kt and waves 1 to 2 ft. * WHERE...Chequamegon Bay-Bayfield to Oak Point WI. * WHEN...Until 4 AM CST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Anyone operating a smaller vessel should avoid navigating in hazardous conditions. && $$ Action: New Issued At: 2025-12-20 19:26:01 471 WHUS73 KDLH 210125 MWWDLH URGENT - MARINE WEATHER MESSAGE National Weather Service Duluth MN 725 PM CST Sat Dec 20 2025 LSZ145>148-150-211000- /O.CAN.KDLH.GL.W.0044.000000T0000Z-251221T0400Z/ /O.NEW.KDLH.SC.Y.0148.251221T0125Z-251221T1000Z/ /O.CON.KDLH.UP.W.0010.000000T0000Z-251221T1000Z/ Duluth MN to Port Wing WI-Port Wing to Sand Island WI- Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI- Outer Apostle Islands Beyond 5 NM from Mainland- 725 PM CST Sat Dec 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CST SUNDAY... ...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 4 AM CST SUNDAY... ...GALE WARNING IS CANCELLED... * WHAT...For the Small Craft Advisory, west winds 15 to 25 kt with gusts up to around 30 kt and waves 5 to 8 ft. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater may rapidly accumulate on vessels. * WHERE...Duluth MN to Port Wing WI, Port Wing to Sand Island WI, Sand Island to Bayfield WI, Oak Point to Saxon Harbor WI and Outer Apostle Islands Beyond 5 NM from Mainland. * WHEN...Until 4 AM CST Sunday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. Anyone operating a smaller vessel should avoid navigating in hazardous conditions. && $$ LSZ140-211000- /O.CAN.KDLH.UP.W.0010.000000T0000Z-251221T0400Z/ /O.CON.KDLH.GL.W.0044.000000T0000Z-251221T1000Z/ Grand Portage to Grand Marais MN- 725 PM CST Sat Dec 20 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM CST SUNDAY... ...HEAVY FREEZING SPRAY WARNING IS CANCELLED... * WHAT...Northwest winds 10 to 20 kt with gusts up to 40 kt and waves 1 to 4 ft. * WHERE...Grand Portage to Grand Marais MN. * WHEN...Until 4 AM CST Sunday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ141>144-211000- /O.CAN.KDLH.GL.W.0044.000000T0000Z-251221T0400Z/ /O.NEW.KDLH.SC.Y.0148.251221T0125Z-251221T1000Z/ Grand Marais to Taconite Harbor MN- Taconite Harbor to Silver Bay Harbor MN- Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN- 725 PM CST Sat Dec 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CST SUNDAY... ...GALE WARNING IS CANCELLED... * WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and waves 1 to 3 ft. * WHERE...Grand Marais to Taconite Harbor MN, Taconite Harbor to Silver Bay Harbor MN, Silver Bay Harbor to Two Harbors MN and Two Harbors to Duluth MN. * WHEN...Until 4 AM CST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Anyone operating a smaller vessel should avoid navigating in hazardous conditions. && $$ LSZ121-211000- /O.CAN.KDLH.GL.W.0044.000000T0000Z-251221T0400Z/ /O.NEW.KDLH.SC.Y.0148.251221T0125Z-251221T1000Z/ Chequamegon Bay-Bayfield to Oak Point WI- 725 PM CST Sat Dec 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CST SUNDAY... ...GALE WARNING IS CANCELLED... * WHAT...West winds 10 to 20 kt with gusts up to 30 kt and waves 1 to 2 ft. * WHERE...Chequamegon Bay-Bayfield to Oak Point WI. * WHEN...Until 4 AM CST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Anyone operating a smaller vessel should avoid navigating in hazardous conditions. && $$ Action: New Issued At: 2025-12-20 19:26:01 471 WHUS73 KDLH 210125 MWWDLH URGENT - MARINE WEATHER MESSAGE National Weather Service Duluth MN 725 PM CST Sat Dec 20 2025 LSZ145>148-150-211000- /O.CAN.KDLH.GL.W.0044.000000T0000Z-251221T0400Z/ /O.NEW.KDLH.SC.Y.0148.251221T0125Z-251221T1000Z/ /O.CON.KDLH.UP.W.0010.000000T0000Z-251221T1000Z/ Duluth MN to Port Wing WI-Port Wing to Sand Island WI- Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI- Outer Apostle Islands Beyond 5 NM from Mainland- 725 PM CST Sat Dec 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CST SUNDAY... ...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT UNTIL 4 AM CST SUNDAY... ...GALE WARNING IS CANCELLED... * WHAT...For the Small Craft Advisory, west winds 15 to 25 kt with gusts up to around 30 kt and waves 5 to 8 ft. For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater may rapidly accumulate on vessels. * WHERE...Duluth MN to Port Wing WI, Port Wing to Sand Island WI, Sand Island to Bayfield WI, Oak Point to Saxon Harbor WI and Outer Apostle Islands Beyond 5 NM from Mainland. * WHEN...Until 4 AM CST Sunday. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. Anyone operating a smaller vessel should avoid navigating in hazardous conditions. && $$ LSZ140-211000- /O.CAN.KDLH.UP.W.0010.000000T0000Z-251221T0400Z/ /O.CON.KDLH.GL.W.0044.000000T0000Z-251221T1000Z/ Grand Portage to Grand Marais MN- 725 PM CST Sat Dec 20 2025 ...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM CST SUNDAY... ...HEAVY FREEZING SPRAY WARNING IS CANCELLED... * WHAT...Northwest winds 10 to 20 kt with gusts up to 40 kt and waves 1 to 4 ft. * WHERE...Grand Portage to Grand Marais MN. * WHEN...Until 4 AM CST Sunday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ LSZ141>144-211000- /O.CAN.KDLH.GL.W.0044.000000T0000Z-251221T0400Z/ /O.NEW.KDLH.SC.Y.0148.251221T0125Z-251221T1000Z/ Grand Marais to Taconite Harbor MN- Taconite Harbor to Silver Bay Harbor MN- Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN- 725 PM CST Sat Dec 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CST SUNDAY... ...GALE WARNING IS CANCELLED... * WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and waves 1 to 3 ft. * WHERE...Grand Marais to Taconite Harbor MN, Taconite Harbor to Silver Bay Harbor MN, Silver Bay Harbor to Two Harbors MN and Two Harbors to Duluth MN. * WHEN...Until 4 AM CST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Anyone operating a smaller vessel should avoid navigating in hazardous conditions. && $$ LSZ121-211000- /O.CAN.KDLH.GL.W.0044.000000T0000Z-251221T0400Z/ /O.NEW.KDLH.SC.Y.0148.251221T0125Z-251221T1000Z/ Chequamegon Bay-Bayfield to Oak Point WI- 725 PM CST Sat Dec 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CST SUNDAY... ...GALE WARNING IS CANCELLED... * WHAT...West winds 10 to 20 kt with gusts up to 30 kt and waves 1 to 2 ft. * WHERE...Chequamegon Bay-Bayfield to Oak Point WI. * WHEN...Until 4 AM CST Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Anyone operating a smaller vessel should avoid navigating in hazardous conditions. && $$ Action: Expired Issued At: 2025-12-21 03:47:34 208 WHUS73 KDLH 210947 MWWDLH URGENT - MARINE WEATHER MESSAGE National Weather Service Duluth MN 347 AM CST Sun Dec 21 2025 LSZ140-211100- /O.EXP.KDLH.GL.W.0044.000000T0000Z-251221T1000Z/ Grand Portage to Grand Marais MN- 347 AM CST Sun Dec 21 2025 ...GALE WARNING WILL EXPIRE AT 4 AM CST EARLY THIS MORNING... $$ LSZ145>148-150-211100- /O.EXP.KDLH.UP.W.0010.000000T0000Z-251221T1000Z/ /O.EXP.KDLH.SC.Y.0148.000000T0000Z-251221T1000Z/ Duluth MN to Port Wing WI-Port Wing to Sand Island WI- Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI- Outer Apostle Islands Beyond 5 NM from Mainland- 347 AM CST Sun Dec 21 2025 ...HEAVY FREEZING SPRAY WARNING WILL EXPIRE AT 4 AM CST EARLY THIS MORNING... ...SMALL CRAFT ADVISORY WILL EXPIRE AT 4 AM CST EARLY THIS MORNING... $$ LSZ141>144-211100- /O.EXP.KDLH.SC.Y.0148.000000T0000Z-251221T1000Z/ Grand Marais to Taconite Harbor MN- Taconite Harbor to Silver Bay Harbor MN- Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN- 347 AM CST Sun Dec 21 2025 ...SMALL CRAFT ADVISORY WILL EXPIRE AT 4 AM CST EARLY THIS MORNING... $$ LSZ121-211100- /O.EXP.KDLH.SC.Y.0148.000000T0000Z-251221T1000Z/ Chequamegon Bay-Bayfield to Oak Point WI- 347 AM CST Sun Dec 21 2025 ...SMALL CRAFT ADVISORY WILL EXPIRE AT 4 AM CST EARLY THIS MORNING... $$ Action: Expired Issued At: 2025-12-21 03:47:34 208 WHUS73 KDLH 210947 MWWDLH URGENT - MARINE WEATHER MESSAGE National Weather Service Duluth MN 347 AM CST Sun Dec 21 2025 LSZ140-211100- /O.EXP.KDLH.GL.W.0044.000000T0000Z-251221T1000Z/ Grand Portage to Grand Marais MN- 347 AM CST Sun Dec 21 2025 ...GALE WARNING WILL EXPIRE AT 4 AM CST EARLY THIS MORNING... $$ LSZ145>148-150-211100- /O.EXP.KDLH.UP.W.0010.000000T0000Z-251221T1000Z/ /O.EXP.KDLH.SC.Y.0148.000000T0000Z-251221T1000Z/ Duluth MN to Port Wing WI-Port Wing to Sand Island WI- Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI- Outer Apostle Islands Beyond 5 NM from Mainland- 347 AM CST Sun Dec 21 2025 ...HEAVY FREEZING SPRAY WARNING WILL EXPIRE AT 4 AM CST EARLY THIS MORNING... ...SMALL CRAFT ADVISORY WILL EXPIRE AT 4 AM CST EARLY THIS MORNING... $$ LSZ141>144-211100- /O.EXP.KDLH.SC.Y.0148.000000T0000Z-251221T1000Z/ Grand Marais to Taconite Harbor MN- Taconite Harbor to Silver Bay Harbor MN- Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN- 347 AM CST Sun Dec 21 2025 ...SMALL CRAFT ADVISORY WILL EXPIRE AT 4 AM CST EARLY THIS MORNING... $$ LSZ121-211100- /O.EXP.KDLH.SC.Y.0148.000000T0000Z-251221T1000Z/ Chequamegon Bay-Bayfield to Oak Point WI- 347 AM CST Sun Dec 21 2025 ...SMALL CRAFT ADVISORY WILL EXPIRE AT 4 AM CST EARLY THIS MORNING... $$ Action: Expired Issued At: 2025-12-21 03:47:34 208 WHUS73 KDLH 210947 MWWDLH URGENT - MARINE WEATHER MESSAGE National Weather Service Duluth MN 347 AM CST Sun Dec 21 2025 LSZ140-211100- /O.EXP.KDLH.GL.W.0044.000000T0000Z-251221T1000Z/ Grand Portage to Grand Marais MN- 347 AM CST Sun Dec 21 2025 ...GALE WARNING WILL EXPIRE AT 4 AM CST EARLY THIS MORNING... $$ LSZ145>148-150-211100- /O.EXP.KDLH.UP.W.0010.000000T0000Z-251221T1000Z/ /O.EXP.KDLH.SC.Y.0148.000000T0000Z-251221T1000Z/ Duluth MN to Port Wing WI-Port Wing to Sand Island WI- Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI- Outer Apostle Islands Beyond 5 NM from Mainland- 347 AM CST Sun Dec 21 2025 ...HEAVY FREEZING SPRAY WARNING WILL EXPIRE AT 4 AM CST EARLY THIS MORNING... ...SMALL CRAFT ADVISORY WILL EXPIRE AT 4 AM CST EARLY THIS MORNING... $$ LSZ141>144-211100- /O.EXP.KDLH.SC.Y.0148.000000T0000Z-251221T1000Z/ Grand Marais to Taconite Harbor MN- Taconite Harbor to Silver Bay Harbor MN- Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN- 347 AM CST Sun Dec 21 2025 ...SMALL CRAFT ADVISORY WILL EXPIRE AT 4 AM CST EARLY THIS MORNING... $$ LSZ121-211100- /O.EXP.KDLH.SC.Y.0148.000000T0000Z-251221T1000Z/ Chequamegon Bay-Bayfield to Oak Point WI- 347 AM CST Sun Dec 21 2025 ...SMALL CRAFT ADVISORY WILL EXPIRE AT 4 AM CST EARLY THIS MORNING... $$ | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||